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TelenavMapping / US_mapping_projects

Containing mapping projects on different areas in US. Issues contain editing plan, overview and conclusions after they are done.
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USA – Detroit – Road geometry #22

Closed hoream-telenav closed 6 years ago

hoream-telenav commented 6 years ago

From @manuelab-telenav on April 7, 2017 15:14

Description

In this project we will map road geometry in Detroit, Michigan area and we will focus on adding missing roads as well as improving the existing data in OSM. missing

How to map

We will follow the mapping scheme that is already used in the United States as it is described on this page:

For adding roundabouts we will follow this guideline :

Sources

Copied from original issue: TelenavMapping/mapping-projects#3

hoream-telenav commented 6 years ago

From @mvexel on April 7, 2017 16:48

Which version of TIGER will we be using?

hoream-telenav commented 6 years ago

From @manuelab-telenav on April 10, 2017 10:49

We'll be using the latest version, released in 2016: https://www.census.gov/geo/maps-data/data/tiger.html

hoream-telenav commented 6 years ago

From @mvexel on April 10, 2017 16:24

(Just FYI new TIGER data versions are released annually around the end of the summer)

hoream-telenav commented 6 years ago

From @jmcbroom on April 11, 2017 15:39

For road geometry, might also want to consider the Michigan Geographic Framework: http://gis-michigan.opendata.arcgis.com/datasets/5fddb53b929b4b729b8d4282b4d23ade_20

~I think that's v15 (for 2015) - not sure on the release schedule for v16.~ Actually, that links to v16.

hoream-telenav commented 6 years ago

From @manuelab-telenav on April 11, 2017 16:49

Great tip! Thanks, we'll be using these for sure.

hoream-telenav commented 6 years ago

From @markscalf on April 11, 2017 19:29

Please keep in mind that there has been a significant amount of construction in the area (and will continue to be), especially along freeways which may not be reflected in the latest Bing imagery (i.e. I 75 near bridge to Canada, I 275 between I96 & I 696, new 10 yr project along I75 between square lake road and downtown Detroit, new project along M59 between Romeo Plank and ~ Hayes). All road alignment changes should be confirmed with either probe traces and/or open source imagery traces from Mapillary and/or OpenStreetCam.

hoream-telenav commented 6 years ago

From @markscalf on April 11, 2017 19:32

Another thing to point out is that there are a significant number of duplicate nodes (i.e. highway node shared with admin boundary). I believe this issue goes back to initial import and is common throughout the entire metro area. Recommend that these be corrected if seen while adjusting road geometry.

hoream-telenav commented 6 years ago

From @simonap-telenav on April 13, 2017 5:35

Thanks, that's very helpful. We've found a few cases of duplicated nodes and we corrected them. We'll keep in mind your recommendations when we're editing.